DE3802353A1 - Safety cannula - Google Patents

Safety cannula

Info

Publication number
DE3802353A1
DE3802353A1 DE3802353A DE3802353A DE3802353A1 DE 3802353 A1 DE3802353 A1 DE 3802353A1 DE 3802353 A DE3802353 A DE 3802353A DE 3802353 A DE3802353 A DE 3802353A DE 3802353 A1 DE3802353 A1 DE 3802353A1
Authority
DE
Germany
Prior art keywords
cannula
protective cap
safety
cap
cone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE3802353A
Other languages
German (de)
Inventor
Uwe W Dr Ballies
Original Assignee
Uwe W Dr Ballies
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uwe W Dr Ballies filed Critical Uwe W Dr Ballies
Priority to DE3802353A priority Critical patent/DE3802353A1/en
Publication of DE3802353A1 publication Critical patent/DE3802353A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A61B5/150641Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position
    • A61B5/150656Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves comprising means to impede repositioning of protection sleeve from covering to uncovering position semi-automatically triggered, i.e. in which the triggering of the protective sleeve requires a deliberate action by the user, e.g. manual release of spring-biased extension means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150015Source of blood
    • A61B5/15003Source of blood for venous or arterial blood
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150389Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Detecting, measuring or recording for diagnostic purposes; Identification of persons
    • A61B5/15Devices for taking samples of blood
    • A61B5/150007Details
    • A61B5/150374Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381Design of piercing elements
    • A61B5/150503Single-ended needles
    • A61B5/150519Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/325Means obstructing the needle passage at distal end of a needle protection sleeve
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3257Semi-automatic sleeve extension, i.e. in which triggering of the sleeve extension requires a deliberate action by the user, e.g. manual release of spring-biased extension means

Abstract

A safety cannula has a protective cap (4) which can be pushed by a spring (5) over the tip of the cannula (1). Before use of the sterile cannula (1) this protective cap (4) is anchored on the cannula hub (2) by a locking mechanism (7). <IMAGE>

Description

Die Erfindung betrifft eine Sicherheitskanüle gemäß Oberbegriff des Patentanspruchs 1. The invention relates to a safety cannula according to the preamble of claim 1.

Es ist bereits bekannt, zum Punktieren verwendete Kanülen, die üblicherweise eine sehr scharf geschliffene Spitze haben, vor dem Gebrauch durch eine Schutzhülle zu sichern. It is already known, used to puncture cannulas, which usually have a very sharpened tip to be secured by a protective cover before use. Die bekannten Schutzhüllen erstrecken sich über die gesamte Länge der Kanüle und schließen diese vollständig ein. The known protective sleeves extend over the entire length of the cannula and close it completely. Zu diesem Zweck sind die Schutzhüllen an einem Ende geschlossene Röhrchen, deren anderes Ende auf den Kanülenkonus aufsteckbar ist. For this purpose the cases are connected at one end closed tube, the other end can be plugged onto the cannula cone. Diese bekannten Schutzhüllen haben jedoch den Nachteil, daß nach dem Gebrauch der Kanüle zwei Hände zum erneuten Aufstecken der Schutzhülle erforderlich sind. However, these known cases have the drawback that after use the needle two hands to re-fitting the protective cover are required. Dabei kommt es sehr häufig zu Verletzungen, wenn einerseits das die Kanüle handhabende Personal beispielsweise durch Ablenkungen seitens des Patienten unachtsam ist oder andererseits aufgrund von einsetzender Weitsichtigkeit Schwierigkeiten bei der räumlichen Zuordnung von Schutzhülle, Öffnung und Kanülenspitze hat. It is very common to injury if on the one hand the cannula handle personnel inadvertently example, by distractions on the part of the patient or on the other hand due to the onset of long-sightedness difficulty in spatial allocation of protective cover, opening and cannula tip has. Diese Verletzungen sind insbesondere deswegen von schwerwiegender Art, weil die Kanüle mit gefährlichen Viren verunreinigt sein kann. These injuries are especially so of a serious nature, because the cannula may be contaminated with dangerous viruses. Man denke in diesem Zusammenhang bloß an die Blutentnahme eines mit HIV-Viren (AIDS) oder mit Hepatitis-Viren infizierten Patienten. In this context, we think only of the blood of an HIV virus (AIDS) or hepatitis virus infected patients.

Es ist daher Aufgabe der Erfindung, eine Sicherheitskanüle zu schaffen, bei der die Gefahr von Verletzungen durch die verunreinigte Spitze ausgeschlossen ist. It is therefore an object of the invention to provide a safety cannula, in which the risk of injury from the contaminated tip is excluded.

Zur Lösung dieser Aufgabe dienen die kennzeichnenden Merkmale des Patentanspruchs 1. To solve this problem the characterizing features of claim 1 serve.

Die erfindungsgemäße Sicherheitskanüle weist demnach eine Schutzkappe auf, die vor dem Gebrauch der zu diesem Zeitpunkt noch sterilen Kanüle am Kanülenkonus verankert ist. Accordingly, the safety needle of the invention has a protective cap that is anchored before use of at this time sterile needle cannula at the cone. Nach der Blutabnahme wird die Schutzkappe von der die Blutentnahmevorrichtung haltenden Hand durch Fingerdruck entriegelt, so daß eine sich zwischen dem Kanülenkonus und der Schutzkappe erstreckende Druckfeder die Sicherheitskappe nach vorne in Richtung zur Spitze der Kanüle drücken kann. After the blood collection, the protective cap is released from the blood sampling device holding hand by finger pressure, so that a extending between the cannula cone and the protective cap compression spring can press toward the tip of the cannula, the safety cap forward. Die so nach vorne geschobene Schutzkappe erstreckt sich bis über die Facette der Kanüle und schließt diese vollständig ein, so daß Verletzungen durch die Facette der gebrauchten Kanüle unmöglich sind. The so pushed forward cap extends beyond the facet of the cannula and closes it completely, so that injuries caused by the facet of the used cannula is impossible.

Vorzugsweise ist die Schutzkappe mit Widerhaken versehen, die ein Zurückschieben der Schutzkappe in Richtung Kanülenkonus verhindern. Preferably, the cap is provided with barbs, which prevent the pushing back the protective cap in the direction of cannula cone.

Als weitere Sicherung dient eine in der Schutzkappe vorgesehene Klappe, welche die Schutzkappenöffnung in der Art eines Klappenventils verschließt. As further insurance an opening provided in the protective cap flap which closes the cap opening in the manner of a flap valve is used.

Gemäß einer Weiterbildung der Erfindung ist in der Schutzkappe ein Desinfektionsmittel in einem Gel, in getränkter Watte oder in einem Schaumstoff untergebracht, welches beim Vorschieben der Schutzkappe über die Facette die Kanüle desinfiziert. According to a further development of the invention, a disinfectant is placed in a gel, soaked in cotton wool or a foamed material in the protective cap, which disinfected during advancement of the protective cap on the facet of the cannula.

In einer Weiterbildung der Erfindung erstreckt sich die Kanüle doppelendig nach innen in den Kanülenkonus und besitzt dort ebenfalls ein angeschärftes Ende, das vor dem Aufstecken einer Blutentnahmevorrichtung durch ein Hütchen oder eine Membran aus synthetischem oder natürlichem Kautschuk abgedeckt ist und dadurch die Kanüle ventilartig verschließt, wie dies in ähnlicher Weise aus der EP-A-01 43 292 bekannt ist. In a further development of the invention, the cannula extends double-ended inwardly into the cannula cone and also has a sharpened end which is covered prior to the mounting of a blood sampling device by a cone or a membrane made of synthetic or natural rubber, thereby closing the needle valve-like there, as is known in a similar manner from EP-A-01 43 292nd

Die Erfindung wird im Folgenden anhand von Figuren näher erläutert; The invention is explained in more detail below with reference to figures; es zeigen: show it:

Fig. 1 eine Sicherheitskanüle mit über die Facette bewegter Schutzkappe; Figure 1 shows a safety needle with more than the facet moving cap.

Fig. 2 eine sterile Sicherheitskanüle mit am Kanülen konus verankerter Schutzkappe und Fig. 2 is a sterile safety needle with the cannula cone anchored cap and

Fig. 3 eine vergrößerte Teilschnittdarstellung durch die Schutzkappe und Kanüle der Fig. 1 und 2. Fig. 3 is an enlarged fragmentary sectional view through the cap and cannula of FIG. 1 and 2.

Fig. 1 zeigt eine Kanüle 1 , die in einem Kanülenkonus 2 verankert ist. Fig. 1 shows a cannula 1 which is anchored in a cannula cone 2. Die Kanüle 1 ist eine übliche Hohlnadel aus beispielsweise Edelstahl, an deren Spitze eine Facette 3 angeschliffen ist. The cannula 1 is a standard hollow needle made of stainless steel, for example, at the head of a facet 3 is ground. Der Kanülenkonus 2 besteht üblicherweise aus einem harten Kunststoff, in den die Kanüle 1 eingebettet ist. The cannula cone 2 is usually made of a hard plastic, into which the cannula 1 is embedded.

Fig. 1 zeigt die Schutzkappe 4 der Sicherheitskanüle im gesicherten Zustand, bei dem die Spitze bzw. Facette 3 der Kanüle 1 von der Schutzkappe 4 umgeben ist. Fig. 1 shows the cap 4 of the safety needle in the locked state in which the tip or facet 3 of the cannula 1 from the protective cap 4 is surrounded. Die Schutzkappe 4 wird in diese Lage durch eine Druckfeder 5 gedrückt, die mit einem Ende in den Kanülenkonus 2 eingeschweißt ist und die sich mit ihrem anderen Ende an einem Steg 6 der Schutzkappe 4 abstützt, wie man am besten aus Fig. 3 erkennt. The protective cap 4 is pushed into this position by a compression spring 5, which is welded with one end into the cannula cone 2 and is supported with its other end to a ridge 6 of the cap 4, as best seen in FIG. 3.

Fig. 2 zeigt die Schutzkappe 4 vor dem Gebrauch, bei dem sie an dem Kanülenkonus 2 verankert ist. Fig. 2 shows the protective cap 4 before use, where it is anchored to the cannula cone 2. Zu diesem Zweck greift ein Haken 7 mit seinem Fortsatz 8 in eine Ringnut 9 des Kanülenkonus 2 , die in der Nähe der Feder 5 eingeformt ist. To this end a hook 7 engages with its extension 8 in an annular groove 9 of the cannula cone 2 which is formed in the vicinity of the spring. 5 In diesem Zustand ist die Feder 5 vollständig zusammengedrückt und in oder unter der Wand der Schutzkappe 4 untergebracht. In this state, the spring 5 is completely compressed and accommodated in the wall or under the protective cap. 4 Die Zungen 10 und die Klappe 11 liegen in dieser Ausführungsform an der Kanüle 1 , so daß sich die Kanüle 1 durch die vordere Öffnung 12 der Schutzkappe 4 erstrecken kann. The tongues 10 and the flap 11 are located in this embodiment at the needle 1, so that the cannula 1 through the front opening 12 of the protective cap 4 may extend. Fig. 3 läßt diese Einzelheiten am besten erkennen. Fig. 3 these details can best be seen.

Nach dem Gebrauch der Kanüle 1 kann die Bedienungsperson die Schutzkappe 4 leicht mit einer Hand entriegeln, in dem mit einem Finger auf das freie Ende 13 des Hakens 7 gedrückt wird. After use, the cannula 1, the operator can easily unlock the cap 4 with a hand, is pressed in the one finger on the free end 13 of the hook. 7 Der Haken 7 ist über einen Verbindungssteg 14 mit der Wand der Schutzkappe 4 verbunden, und zwar zweckmäßigerweise an diese angeformt, so daß sich beim Niederdrücken des freien Endes 13 des Hakens 7 der Hakenfortsatz 8 aus der Ringnut 9 des Kanülenkonus 2 oder einer ähnlichen Vertiefung bewegt. The hook 7 is connected via a connecting web 14 with the wall of the protective cap 4, specifically expediently integrally formed on them, so that upon depression of the free end 13 of the hook 7 of the hook extension 8 from the annular groove 9 of the cannula cone 2 or a similar recess moves , Dadurch kann sich die Feder 5 entspannen und die Schutzkappe 4 in Richtung Kanülenspitze drücken. The spring can relax 5 and press the cap 4 in the direction needle tip. Es wird allerdings darauf hingewiesen, daß die Feder 5 mit ihrem schutzkappenseitigen Ende auch auf irgendeine an sich bekannte Weise in der Schutzkappe 4 oder an dieser befestigt sein muß, damit die Schutzkappe 4 beim Lösen der Feder 5 nicht von der Kanüle 1 heruntergeschossen wird. It is noted, however, that the spring 5 with its cap end in known manner has to be secured in the protective cap 4 or this also in some, so the protective cap 4 is not shot down when releasing the spring 5 of the cannula. 1

Fig. 3 zeigt außerdem Einzelheiten der Zungen 10 , die an die Innenwand der Schutzkappe 4 angeformt sind und sich in Richtung von der Schutzkappenöffnung 12 weg erstrecken, so daß sie normalerweise in die Kanüle 1 eingreifen, wenn sich die Schutzkappe 4 über der Kanülenspitze befindet. Fig. 3 also shows details of the tongues 10, which are integrally formed on the inner wall of the protective cap 4 and extending in the direction of cap opening 12 away so as to normally engage the cannula 1, when the protective cap 4 is over the needle tip. Außerdem ist in diesem Zustand die Klappe 11 über der Schutzkappenöffnung 12 angeordnet, so daß selbst dann, wenn die Zungen 10 die Facette 3 der Kanüle passieren ließen, ein Austritt der Kanülenspitze aus der Schutzkappe verhindert wird, da die Klappe 11 die Schutzkappenöffnung 12 verschließt. In addition, in this state, the flap 11 is positioned above the cap opening 12, so that even if the tabs 10 an exit of the cannula tip is prevented from the cap let pass the cannula, the facet 3, since the flap 11 closes the cap opening 12th

In Fig. 3 ist außerdem ein Desinfektionsmittel 20 strichpunktiert angedeutet, das in einem Gel, in getränkter Watte oder in einem Schaum angeordnet ist, der sich an einer Seite oder an beiden Seiten der Zungen 10 oder an einem anderen geeigneten Steg im Inneren der Schutzkappe 4 befinden kann. In Fig. 3 also a disinfectant 20 is indicated in phantom, which is arranged in a gel, in-soaked cotton wool or in a foam which is located at one side or at both sides of the tongues 10 or in another suitable web inside the protective cap 4 can be located. Dabei kommt es lediglich darauf an, daß beim Vorschieben der Schutzkappe 4 in die Stellung gemäß Fig. 3, also in eine Stellung, in der die Facette 3 der Kanüle 1 vollständig von der Schutzkappe 4 umhüllt ist, die Kanüle 1 bis zu ihrer Spitze automatisch mit dem Desinfektionsmittel 20 desinfiziert wird. It is only important that automatically during the advance of the cap 4 in the position shown in Fig. 3, ie in a position in which the facet 3 of the cannula 1 is fully enveloped by the protective cap 4, the cannula 1 to its tip is disinfected with the disinfectant 20th Geeignete Desinfektionsmittel und Speicher für derartige Desinfektionsmittel sind an sich bekannt und werden beispielsweise von dem erwähnten Gel, der getränkten Watte oder dem Schaumstoff gebildet. Suitable disinfectants and storage of such disinfectants are known per se and are for example formed from said gel, the soaked cotton or the foam.

Claims (4)

1. Sicherheitskanüle mit Kanülenkonus ( 2 ) und mit einer Schutzkappe ( 4 ) zum Abdecken der angeschärften Facette ( 3 ) einer Kanüle 1, dadurch gekennzeichnet, daß eine Druckfeder ( 5 ) mit einem Ende in dem Kanülenkonus ( 2 ) und mit dem anderen Ende in der Schutzkappe ( 4 ) verankert ist; 1. Safety cannula needle cone (2) and with a protective cap (4) for covering the sharpened facet (3) of a cannula 1, characterized in that a compression spring (5) with one end into the cannula cone (2) and at the other end in the protective cap (4) is anchored; daß die Schutzkappe ( 4 ) eine Schutzkappenöffnung ( 12 ) aufweist, durch die sich die Kanüle ( 1 ) vor dem Gebrauch der Schutzkappe ( 4 ) erstreckt; that the protective cap (4) has a cap opening (12) through which the cannula (1) prior to use of the protective cap (4); und daß die Schutzkappe ( 4 ) mit einer Verriegelungsvorrichtung ( 7 ) versehen ist, welche die Schutzkappe ( 4 ) an dem Kanülenkonus ( 2 ) bei zusammengedrückter Druckfeder ( 5 ) verriegelt. and that the protective cap (4) with a locking device (7) is provided which locks the protective cap (4) to the cannula cone (2) at compressed pressure spring (5).
2. Sicherheitskanüle nach Anspruch 1, dadurch gekenn zeichnet, daß die Schutzkappe ( 4 ) widerhakenartige Zungen ( 10 ) in ihrem Inneren aufweist, die nach dem Gebrauch der Sicherheitsvorrichtung ein Zurückschieben der Schutzkappe ( 4 ) in Richtung Kanülenkonus ( 2 ) verhindern. 2. Safety cannula according to claim 1, characterized in that the protective cap (4) barb-like tongues (10) in its interior, which prevent the pushing back the protective cap (4) in the direction of cannula cone (2) after the use of the safety device.
3. Sicherheitsvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Schutzkappenöffnung ( 12 ) durch eine Klappe ( 11 ) verschließbar ist, die nach einer Betätigung der Sicherheitsvorrichtung ein Zurückschieben der Schutzkappe ( 4 ) in Richtung auf den Kanülenkonus ( 2 ) verhindert. 3. Safety device according to claim 1 or 2, characterized in that the protective cap opening (12) by a flap (11) can be closed, which prevents retraction of the protective cap (4) in the direction towards the cannula cone (2) after an actuation of the safety device.
4. Sicherheitsvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in der Schutzkappe ( 4 ) ein Desinfektionsmittel ( 20 ) angeordnet ist. 4. Safety device according to one of claims 1 to 3, characterized in that in the protective cap (4), a disinfectant (20) is arranged.
DE3802353A 1988-01-27 1988-01-27 Safety cannula Withdrawn DE3802353A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3802353A DE3802353A1 (en) 1988-01-27 1988-01-27 Safety cannula

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3802353A DE3802353A1 (en) 1988-01-27 1988-01-27 Safety cannula

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DE3802353A1 true DE3802353A1 (en) 1989-08-10

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434008A1 (en) * 1989-12-18 1991-06-26 Tase Lazovski Injection needle protection device
US5098401A (en) * 1991-01-04 1992-03-24 Lange Andries G De Disposable automatic needle cover assembly with safety lock
US5300045A (en) * 1993-04-14 1994-04-05 Plassche Jr Walter M Interventional needle having an automatically capping stylet
EP0630268A1 (en) * 1992-03-10 1994-12-28 Injectimed, Inc. Medical injection devices with safety features
WO2003028791A1 (en) * 2001-09-26 2003-04-10 B. Braun Melsungen Ag Spring launched needle safety clip
WO2005089650A1 (en) * 2004-03-17 2005-09-29 Sarstedt Ag & Co. Blood-collection device for newborn babies and infants
WO2006096633A1 (en) 2005-03-07 2006-09-14 Erskine Medical Llc Method of making a needle shielding device
US8066678B2 (en) 2001-12-17 2011-11-29 Bard Access Systems, Inc. Safety needle with collapsible sheath
US8231582B2 (en) 2008-12-11 2012-07-31 Bard Access Systems, Inc. Device for removing a Huber needle from a patient
US8574197B2 (en) 2004-02-26 2013-11-05 C. R. Bard, Inc. Huber needle safety enclosure
US8597253B2 (en) 2007-04-20 2013-12-03 Bard Access Systems Huber needle with safety sheath
US9180277B2 (en) 2010-12-02 2015-11-10 Erskine Medical Llc Release mechanism for use with needle shielding devices
US9248234B2 (en) 2010-09-10 2016-02-02 C. R. Bard, Inc. Systems for isolation of a needle-based infusion set
US9278195B2 (en) 2010-12-02 2016-03-08 Erskine Medical Llc Needle shield assembly with hub engagement member for needle device
US9408632B2 (en) 2011-04-07 2016-08-09 Erskine Medical Llc Needle shielding device

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434008A1 (en) * 1989-12-18 1991-06-26 Tase Lazovski Injection needle protection device
US5098401A (en) * 1991-01-04 1992-03-24 Lange Andries G De Disposable automatic needle cover assembly with safety lock
EP0630268A1 (en) * 1992-03-10 1994-12-28 Injectimed, Inc. Medical injection devices with safety features
EP0630268A4 (en) * 1992-03-10 1995-06-28 Injectimed Inc Medical injection devices with safety features.
US5300045A (en) * 1993-04-14 1994-04-05 Plassche Jr Walter M Interventional needle having an automatically capping stylet
US7601139B2 (en) 2001-09-26 2009-10-13 B. Braun Melsungen Ag Spring launched needle safety clip
WO2003028791A1 (en) * 2001-09-26 2003-04-10 B. Braun Melsungen Ag Spring launched needle safety clip
US8048036B2 (en) 2001-09-26 2011-11-01 B. Braun Melsungen Ag Spring launched needle safety clip
EP2316511A3 (en) * 2001-09-26 2011-09-28 B. Braun Melsungen AG Spring launched needle safety cap
EP2042206A3 (en) * 2001-09-26 2009-04-08 B. Braun Melsungen Spring launched needle safety clip
US8728029B2 (en) 2001-12-17 2014-05-20 Bard Access Systems, Inc. Safety needle with collapsible sheath
US8066678B2 (en) 2001-12-17 2011-11-29 Bard Access Systems, Inc. Safety needle with collapsible sheath
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